| 摘要 |
A fuel leakage preventing device for an LPI(Liquefied Petroleum gas Injection) system is provided to prevent a fuel leakage through an injector, by allowing the fuel in a fuel supply line to return to a bombe at a lower fuel pressure than the fuel pressure at the time of starting of an engine. A fuel leakage preventing device for an LPI system includes a bypass line(BL), a rotary valve unit(Bu), and a check valve(15). The bypass line is branched from a fuel return line(L2), and bypasses a pressure regulator(11). The rotary valve unit is mounted on one side of the bypass line, and opens/closes the bypass line in accordance with the control signal from a controller(13). The check valve is mounted on the other side of the bypass line, and restricts the flow direction of the bypass line in one direction.
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